When you think back to the 1960s, what symbolism comes to mind? If you aren't old enough to remember the 60s, what comes to mind when you try to picture the era? For a lot of people it might be the 'Ban the Bomb' symbol that was spray painted on many a wall, or worn around the neck as a medallion. For others it was the smart suits worn by acts like the Beatles. But for a whole subculture of society at the time, it's tie dye clothing.
Nobody seems to know who started the craze, or why, but it was everywhere you looked at Woodstock, and for a couple of years either side of it. The fashion is strongly associated with hippies, and their message of peace and free love. Unlike modern festivals, there were no merchandise stores at the event, so people like the ones on the stall pictured were free to make money by selling their own designs to a captive audience.